Home / 2,803.20-4,208.85-2,114.70

Finding the Fourth Proportional to 2,803.20, 4,208.85 and 2,114.70

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Solution

The fourth proportional to 2,803.20, 4,208.85 and 2,114.70 is: 3,175.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.20 : 4,208.85 = 2,114.70 : x
  2. Step 2: Convert to fraction form
    2,803.20/4,208.85 = 2,114.70/x
  3. Step 3: Cross multiply
    2,803.20x = 4,208.85 × 2,114.70
  4. Step 4: Simplify right side
    2,803.20x = 8,900,455.10
  5. Step 5: Solve for x
    x = 8,900,455.10/2,803.20
  6. Step 6: Final answer
    x = 3,175.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.